There is no denying it anymore. The United Kingdom has fallen back in to recession. Spanish unemployment is languishing at 25% and the country is going to need a bailout (despite starting the recession with less debt and welfare than Germany). The rockstar of the continent (Germany) is doing poorly as well with growth expected to be less than 1% for the year. The Euro Area as a whole has unemployment of nearly 11%. Most countries are having to revise deficit projections upwards (and are facing further, counterproductive governments cuts as a result).
Yet the economy in the US is growing at nearly 3%. Unemployment is falling at about 10 basis points every two months. Inflation remains low. Industrial production is growing quickly with the repatriation of manufacturing. Energy costs are plummeting due to cheap domestic natural gas.
The horizon doesn't look terrible for the US. There are headwinds caused by a shrinking European economy and slowing emerging markets. The US economy has really outperformed most advanced economies in the world, despite being the epicenter of the global recession, and much of the credit goes to the comparatively large stimulus and the monetary loosening by the Fed.
Those who say that the economy could have grown faster under different management (Romney) are absolutely lying. Romney would have taken a similar course as David Cameron, and the results would have been just as disastrous as they are in the UK.